Quicker mining leveling in Nagrand

I was trying to level mining in Nagrand, and forgot about the elementals that you can mine. I figured if I found some near nodes, it would be quick skill ups. I did not realize you could not skill up from the elementals. But what I did find out, is that if I killed an earth elemental near a node, and alternated from the node, to the elemental, back to the node, I was getting an extra skill up from the node. Ive done it from 350-363.